Car-axle.



PATBNTED MAY 24, 1904.

J. M. WILGOX.

N0 MODEL.

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UNITED STATES Patented May 24, 1904 PATENT OFFICE.

OAR-AXLE.

SPECIFICATION forming' part of Letters Patent No. 760, 505, dated May24, 1904. Application filed October 13, 1903. Serial No. 176,901. (Nomodel.)

To all whom, it may concern:

Be it known that I, JOHN MPWrncox, a citizen of the United States,residing at Oleveland, in the county of Ouyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Oar-Axles, of which thefollowing is a full, clear, and exact description, reference being badto the accompanying drawings.

The object of the invention is to provide a strong, durable, andefficient car--axle especi ally useful for mining-cars and capable of being easily assembled and disassembled.

The invention may be summarized as consisting in the construction andcombination of parts hereinafter described, and pointed out definitelyin the claims.

In the drawings, Figure 1 is a longitudinal vertical section through acar-axle embodying my invention. Fig. 2 is a transverse sectional viewin the plane indicated byline 2 2 of Fig. 1, and Fig. 3 is an end Viewof the cap.

Referring to the parts by letters, A represents the axle-sleeve, whichis to be attached rigidly or otherwise to the ear-frame.

B B represent two tubular axle-sections, to the outer ends of which thewheelsO O are rigidly secured by any appropriate means. For example,they may be shrunk upon said axlesections.

D represents a centerbushing which is fitted to the sleeve A and has inits ends cylindrical recesses d, in which the inner ends of theaxlesections are rotatably fitted. There is in this bushing a transversepartition 41, which by engagement with the axle-sections limits itsendwise movement and holds it in a position to serve as the bearing forthe inner ends of both axle-sections A bushing F is also fitted intoeach outer end of the sleeve A, and in this bushing the outer parts ofthe axle-sections are mounted. These bushings may be rotatably fitted inthe sleeve A, or the axlesections may be rotatably fitted to saidbushing. The two axle-sections must, however, be independentlyrotatable. The two axlesections are held in proper relationship witheach other in their bearings by a long tie-rod E. This rod must have aloose fit in one of the axle-sections, as E, so that said rod andaxle-section may rotate independently. The tie-rod has a head 0, whichengages with the independently-rotatable section. Its other projectingend is threaded for the reception of the nut e, by which theaxle-sections may be drawn toward each other and into properrelationship namely, into such a position as will permit both sectionsto rotate within the sleeve A without too much end motion and withouttoo much friction of the wheels upon the end of the sleeve. To preventthe tie-rod from turning in the axle-section B, the extreme end is madeangular, preferably square, as at 0 and a locking device, which is fastto the wheel, (and therefore fast to the axle-section to which the wheelis attached,) engages said squared end. Thislocking device is in theform ofacap G, having a squared recess g, which embraces the squared ende of the tie-rod. This cap also embraces the nut and prevents it fromturning on the tie-rod. This cap is secured fast to the wheel by screws,and it serves, in addition to the purposes before mentioned, the p urpose of preventing the escape of the lubricating-oil from the end of theaxle.

The described device is self-lubricating, because of the oil-pockets ain the sleeve A, through which the axle-sections pass.

Having described my invention, I claim-- l. The combination, with afixed sleeve, two independent rotatable tubular axle-sections journaledtherein, and wheels fastened respectively to said axle-sections, atie-rod passing through both axle-sections and having one projecting endwhich is threaded, a nut onsaid threaded end and means connecting thetie-rod with the axle-section adjacent to said. threaded end, wherebytheir relative rotation is prevented.

2. The combination, with a fixed sleeve, of two independent tubularaxle-sections journaled therein, and wheels fastened respectively tosaid axle-sections, a tie-rod passing through both axle-sections, andhaving one projecting end which is threaded and has an angularextremity, a nut screwed onto said threaded portion, and a lockingdevice fastened to the axle and engaging with the nut and the angularend of the rod to prevent their revolution relative to said axle-sectionand to each other.

3. The combination, with a fixed sleeve, of two independent tubularaxle-sections journaled therein, and wheels fastened respectively tosaid axle-sections, a tie-rod passing through both axle-sections, andhaving one projecting end which is threaded and has an angularextremity, a nut screwed onto said threaded portion, a cap fastened tothe wheel and having an angular end which engages with the nut, andanother angular recesswhich engages with the angular end of the shaft.

4. The combination, with a fixed sleeve, a

bushing therein having in its ends cylindrical recesses which areseparated from each other by a transverse partition, two independenttubular axle-sections which are rotatably mounted in said sleeve andhaving their inner ends rotatable in said bushing, wheels secured to theouter end of said axle-sections, and means holding the axle-sectionsagainst relative endwise movement.

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses. 7 JOHN M. lVlLOOX. \Vitnesses:

E. L. TI-IURSTON, B. XV. BROOKETT.

